Hide-working machine.



No. 788,832. PATENTED MAY 2, 1905.. A. A. HUTOHINSON.

HIDE WORKING MACHINE.

APPLIUATION FILED FEB. s. 1004.

6 SHBETS- SHEBT 1.

PATENTED MAY 2, 1905.

A. A. HUTOHINSON.

HIDE WORKING MACHINE.

APPLIQATION FILED FEB- B, 1904.

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PATENTED MAY 2, 1905. A. A. HUTGHINSON. HIDE WORKING MACHINE. APPLIOA'IION FILED FEB. a, 1904.

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A 'llllllllll/lllllF/i/ No. 788,832. PATENTED MAY 2, 1905.

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HIDE WORKING MACHINE;

APPLIOATION FILED FEB. B, 1904.

6 SHEETS-SHEET 4.

7 6. JAWZM- y No. 788,832. PATENTBD MAY 2, 1905. A. A. HUTGHINSON.

HIDE WORKING MACHINE.

APPLIOATION FILED FEB. 8,1904.

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PATENTED MAY 2, 1905. A. A. HUTOHINSON.

HIDE WORKING MACHINE.

APPLIONION FILED FEB. a. 1904.

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7 M by UNITED STATES Patented May 2, 1905.

PATENT OEEIcE.

HIDE-WORKING MACHINE.

SPECIFICATION forming part of Letters latent No. 788,832, dated May 2, 1905.

Application filed February 8, 1904:. Serial. No. 192,661.

To all whom it may concern.-

Be it known that I, ALBERT A. IIUTGI-IIN- SON, a citizen of the United States of America, and a resident of Winchester, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Hide-Working Machines, of which the following is a specification.

This invention relates to hide-working machines, and has for its object the production of a machine in which the working cylinder cooperates with a rubber-covered roll driven only by contact with said hide-working cylinder and mounted in bearings provided with means for equalizing the tension upon said bed-roll.

It consists in certain novel features of construction and arrangement of parts, which will be readily understood by reference to the description of the drawings and to the claims to be hereinafter given.

Of the drawings, Figure 1 represents a left end elevation of a machine embodying the features of this invention. Fig. 2 represents a sectional elevation looking toward the right. Fig. 3 represents a vertical sectional elevation showing the supports for said rubber roll and the tension-equalizing device. Fig. 4 represents a sectional plan of a portion of the same, the cutting plane being on line 4 4 on Fig. 3. Fig. 5 represents a front elevation of the right-hand side of the machine. Fig. 6 represents a front elevation of the left end of same. Fig. 7 represents an end elevation of the right end of same. Fig. 8 represents a section on line 8 8 on Fig. 7, and Fig. 9 represents a section on line 9, 9 on Fig. 2.

Similar characters designate like parts throughout the several figures of the drawings.

To support the working parts of the machine, a main frame is preferably provided, made up of end frames 10 10 and tie-girths 11 11. In the frames 10 is mounted a shaft 12, having secured thereon at one end outside of said frames a small pulley 13 and a small pinion 14, while upon the other end thereof are mounted large and small pulleys 15 and 16.

In the rear the frames 10 are provided with bearings 17 17 fortrunnions 18 of the frame or side plates 19, which have mounted therein two shafts 2O 21, each having secured thereon a knife-cylinder 22- and 23. The knife-cylinder 22 on the shaft 20 is such as is ordinarily used for .fieshing hides, while the knife-cylinder 23 on the shaft 21 is such as is commonly used for unhairing. The distance of the shaft 21 from the pivot 18 is slightly in excess of the distance of the shaft 20 from that pivot, while the knife-cylinder 23 is of greater diameter than the diameter of the knife-cylinder 22.

On the left-hand end of the shaft 20 are mounted two pulleys 24 25, the larger of which, 24, being belted by a belt to a countershaft, (not shown,) from which the fleshingcylinder is driven at a high rate of speed. The smaller pulley 25 is connected by a belt 25 to the pulley 15, which, with its shaft 12, is driven thereby. The pinion 14 on the shaft 12 meshes with an idler-gear 26, mesh ing with a gear 26, loosely mounted on a shaft 27 and having secured thereto and turning therewith a gear 28.

On the shaft 27 are loosely mounted two rocker-frames 29, having arms 30 extending toward the front of the machine, to which are pivoted rods 31, provided with shoulders 32, between which and brackets 33, through which said rods pass, are interposed springs 34, tending to move said rocker-frames toward the rear of the machine. Theholes in the brackets 33, through which said rods 31 pass, are of sufficient size and shape to permit the free movement of said rods therein as the rockerframes 29 move to and fro about their pivots. In a bearing in each of said rocker-frames 29 is mounted a trunnion 35 of the side frame 36,

in the free ends of which are mounted trun- On the trunnions 37 outside of the apronroll 38 are hung swinging arms 47, provided with boxes 48, in which is mounted a rubbercovered bed-roll 49, said boxes being provided with spring-tension devices 50, which may be adjusted by means of screws 51. The arms 47 are provided with slots 53, through which project clamping-bolts 54 in the side frame 36, thereby permitting the arms 47 to be moved about their pivots 37 whereby said bed-roll may be clamped in any desired position.

The trunnions of the rubber-covered bedroll 49 are mounted in bearings in the boxes of the swinging arms 47, so as to be freely revoluble therein, the revolution of said rubbencovered roll being wholly derived from contact with the working cylinder 22. The rubber-covered roll 49 cooperating with an uncovered metal roll 38 permits the hide to spread much better than on an apron, which is a great advantage in some classes of work. This is caused by the working cylinder 22 cooperating with the rubber-covered roll 49 and feeding the hide as it is being operated upon, while the feed-rolls 66 67 cooperatingwith the polished metal roll 38, assist in the feeding of the hide toward the working cylinders, at the same time permitting the hides, ifv delivered thereto in an uneven condition, to be freely spread over the polished surface of said roll 38.

The side frames 36 are connected to the frames 10 by radius-arms 56, which changes the inclination of the side frames 36 and the hide-supporting rolls 38 49 as the rockerframe 29 is moved to the rear about its pivot 27. This movement of the rocker-frame toward the rear of the machine is effected by the rocker-arms 57 58, the upper member of which is a link connected to the arm 30 of the rockerframe 29 and connected at the lower end to the lower member 58, securely mounted upon the rocker-shaft 59. A treadle 60, also secured to the rocker-frame, serves to straighten the rocker members 57 58 to move said rockerfra-me 29 to the rear.

The link 57 is in two parts 57 and 57 and adjustably secured together by a bolt 57 secured to one part and passing through a slot 57 on the other part. By lengthening or shortening the link the movement of the rocker-frame 29 is regulated. This adjustment of the link 57 is effected by means of the adjusting-screw 57", threaded in an ear 57 on one part, 57. and bearing against another part, 57', on the part 57". When the operators foot is removed from the treadle, the weight of the frames causes them to return to their normal position.

When the parts are in their normal positions and the hide is not being operated upon, as shown in Figs. 1 and 7, the gear 40 on the idler-gear 62, mounted on a stud 63 on the frame 10, said gear 62 being mounted upon the hub of the pulley 64, which is connected by a belt 65 to the small pulley 16 on the shaft 12 and is revolved thereby in the direction indicated by arrows on Fig. 1 of the drawings.

On the pivot of the rocker frame 29 is mounted an arm 29*, provided with a roll 29", adapted to contact with the belt 65 when the hides are being fed to the machine. By this means the hide-supporting roll 38 when it is in its normal position is moved in a direction to feed the hide into a position to be operated upon by the knife-cylinder.

1n the upper portion of the frames 10 are mounted two grooved feed-rolls 66 and 67, said feed-rolls each being provided with trunnions 68 69, having hearings in boxes 70. movably mounted in slots 71 in frames 71 and each 'provided with a spring-tension device of any well-known construction. The trunnions 68 69 have secured to their right-hand ends gears 73 73, which are adapted to mesh with the gear 4O on the hide-supporting-roll trunnion 37 when the hide is being operated upon and be revolved thereby, thus causing the feedrolls 66 67 to cooperate with the hide-supporting roll 38 to feed the hide beneath the knifecylinder.

The sliding bearings 48 for the rubber-covered roll 49 are provided with spring-tension devices 50, adjusted by means of a screw 51, as in the before-mentioned application. On the opposite side, however, to the spring 50 is mounted a rubber spring 50*, which practically balances the tension upon the boxes 48. As the rubber-covered roll 49 is moved into position to cooperate with the hide-cylinder 22 the spring 50 is compressed to increase the tension thereon. As the hide being operated upon passes between the working cylinder and the rubber-covered roll 49 the rubber of said roll will yield slightly when thickened and uneven portions of said hide are reached and permit the thicker portions to embed themselves in the rubber, thereby presenting the opposite side of the hide perfectly flat to be operated upon by a Working cylinder. This insures that the hide will be evenly operated upon throughout its entire surface.

The bearings 48 are forced by means of the spring-tension devices 50 into contact with shoulders 52, which makes a stop for the rubber-covered bed-roll 49 to preventit from being moved by the tension devices 50 too firmly in contact with the hide-working cylinder 22 when said working cylinder and bed-roll are in cooperating position. This prevents injury to the rubber-covered roll when the hide is not interposed between the bed-roll and working cylinder. As soon, however, as a hide is fed between said roll and working cylinder the spring 50 is compressed and the rubber spring 50* expands, carrying the bearings 48 away from the shoulder 52 and equalizing the tension on said bed-roll 49 and permits it to yield slightly to overcome inequalities in the hide being operated upon as said hide passes between the bed-roll and working cylinder. As soon, however, as the hide is removed from a position between the working cylinder and bed-roll the springs will expand to force the bearings 48 against theshoulders 52, thereby compressing the rubber springs 50*, the compression of said springs 50* preventing the bed-roll 49 from being suddenly brought to a stop and with the liability of considerable injury to the bed-roll.

It has been found by experiment that balanced bearings for arubber-covered roll, such as is herein shown and described, gives perfect results on hides of all descriptions and of irregularities in shape and thickness, while it also prevents the hides being grooved by the working cylinder and bed-roll being suddenly brought into cooperating position by means of the action of the spring 50, as is now customary in machines of this class. When the two springs 50 and 50* are used, balancing the bed-roll 49, the bed-roll is not permitted to suddenly come into cooperating position with the hide-working cylinders and this grooving of the hides, often spoiling the same, is entirely obviated.

Tho balanced tension of the bearings 48 and the compressibility of the rubber of the roll 49 take care of all inequalities in the hides and give as good results on the bellies as on the thicker portions thereof.

Having thus described my invention, I claim 1'. The combination with a working cylin der, of an idler bed-roll, slidable bearings for either end thereof, shoulders against which said bearings abut, a spring for forcing said bearings against said shoulders, and a second spring acting upon the opposite side of said bearings to equalize the tension upon opposite sides of said bed-roll when it is cooperating with the hide-working cylinder and removed from said shoulders.

2. The combination with a working cylinder, of a pair of swinging arms, slidable boxes mounted in said arms, a bed-roll mounted in hearings in said boxes, shoulders against which such boxes abut, springs for forcing said boxes against said shoulders, and other springs on the opposite side of said boxes for equalizing the tension on opposite sides thereof when said boxes are separated from said shoulders by the action of the working cylinder upon said bed-roll.

3. The combination with a working cylinder, of an idler bed-roll, bearings for either end thereof slidable in a plane radial to said working cylinder, shoulders against which said bearings abut, a spring for forcing said bearings against said shoulders, and a second spring acting upon the opposite side of said hearings to equalize the tension upon opposite sides of said bed-roll when it is cooperating with the hide-working cylinder and removed from said shoulders.

i. The combination with a working cylinder, of an idler bedroll, slidable bearings for either end thereof, stops against which said bearings abut, a spring for forcing each of said bearings against its stop, and a second spring acting upon the opposite side of said bearings to equalize the tension upon opposite sides of said bed-roll when it is cooperating with the hide-working cylinder and removed from said stops.

5. The combination with a working cylinder, of a pair of swinging arms, slidable boxes mounted in said arms, a bed-roll mounted in bearings in said boxes, stops against which said boxes abut, springs for forcing said boxes against said. stops, and other springs on the opposite side of said boxes for equalizing the tension on opposite sides thereof when said boxes are separated from said stops by the action of the working cylinder upon said bedroll.

6. The combination with a working cylinder, of an idler bed-roll, bearings for either end'thereof slidable in a plane radial to said working cylinder, stops against which said bearings abut, a spring for forcing each of said bearings against its stop, a second spring acting upon the opposite side of said hearings to equalize the tension upon opposite sides of said bed-roll when it is cooperating with the hide-working cylinder and removed from said stops.

7. The combination with a working cylin der, of an idler bedroll, bearings for either 1 end thereof slidable in a plane radial to said working cylinder, means for limiting the movement of said hearings in one direction, a spring for forcing each of said bearings against said limiting means, and a second spring acting upon the opposite side of said hearings to equalize the tension upon opposite sides of said bed-roll when it is cooperating with the hide-working cylinder and removed from said limiting means.

8. The combination with a working cylinder, of an idler bed-roll, slidable bearings for either end thereof, means'for limiting the movement of said hearings in one direction, a spring for'foreing each of said bearings against said limiting means, and a second spring acting upon the opposite side of said hearings to equalize the tension upon opposite sides of said bed-roll when it is cooperating with the hide-working cylinder and removed from said limiting means.

Signed by me at Boston, Massachusetts, this 9th day of January, 1904:.

. ALBERT A. HUTOl-HNSON.

WVitnesses:

WALTER E. LoMBARD, EDNA (J. CLEVELAND. 

